48 + 2 + 1-port stackable Gigabit Ethernet Layer 3 switch with 48x 10/100/1000 Mbps RJ45 ports, 2x 10G ports for receiving SFP + modules and 1x 10Gbps expansion slots for inserting SFP + modules, Layer3 management via SNMP, Console , Telnet u. browser, supports IPv6, routing, layer 3 multicast, BGP4, OSPF, IP clustering, Span and Rapid Spanning Tree, VLAN, prioritization, 802.3ad trunking, port mirroring, full / half duplex on all ports, incl. 19 'Mounting Kit, optional redundant power supply can be retrofitted (RPS900W)